CVE-2017-6181

7.5 HIGH
Published: April 03, 2017 Modified: May 13, 2026
View on NVD

Description

The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/97304
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://bugs.ruby-lang.org/issues/13234
Source: cve@mitre.org
Issue Tracking Vendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660
Source: cve@mitre.org
Issue Tracking Vendor Advisory
http://www.securityfocus.com/bid/97304
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugs.ruby-lang.org/issues/13234
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Vendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
3.6%
88th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

ruby-lang

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